Detachable calk for horseshoes.



PATENTED FEB. 10, 1903.

A. OORUORAN. DETAGHABLE OALK FOB. HORSESHOES.

APPLICATION FILED APR. 8, 1902 I0 MODEL.

/N VE N TOR WITNESSES UNITED STATES PATENT OFFICE.

ANTHONY CORCORAN, OF SEATTLE, WASHINGTON.

DETACHABLE CALK FOR HORSESHOlES.

SPECIFICATION forming part of Letters Patent N 0. 720,115, dated February 10, 1903.

Application filed April 8, 1902. Serial No. 101,874.. (No model.)

To aZZ whom, it may concern.-

Be it known that I, ANTHONY CORCORAN, a citizen of the'United States,residingat Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Detachable Oalks for Horseshoes, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to horseshoes; and its objects are, first, to provide a new and improved horseshoe which is simple and durable in construction and arranged to hold securely insertible calks, toe-weights, or side weights; second, to provide new construction of said calks or weights adapted to be secured to the shoe without the use of any other tools than are at the command of a stablema n or driver, and this, too, without removing the shoe from the foot, and, lastly, to afford easy and convenient means for disengaging the calks or weights from the shoe without marring or altering in any way the shape of the shoe.

The invention consists of novel features and parts and combination of the same, as will be fully described hereinafter and then pointed out in the claims.

Reference being had to the accompanying drawings, where like numerals of reference indicate similar parts in all of the views, Figure 1 is an under side view, partly in section, of a horseshoe embodying my improvements. Figs. 2 and 3 are vertical sections through lines :0 m and y g, respectively, of Fig. 1. Fig. 4: is a perspective view of the heel-calk, and Fig. 5 is a like view of the expansion-wedge shown in the preceding views. Fig. 6 is an under side View of a bar-horseshoe with my improved calks applied thereto. Fig. 7 is a detail view of a shoe-heel wherein the calk is secured by a spring-clip, and Fig. 8 is a perspective view of-the clip.

The shoe is provided upon the under face at the toe and heels with slots or channels 2 and 3, respectively, preferablytaperin g longitudinally thereof and being dovetailed in vertical cross-section. At the inner extremity of each of said slots is a recess 4, and the side walls 5 thereof terminate in projecting hooked lugs 6, adapted to be closed around the calks or weights, as the case may be, when the latter are seated in the slots. The calks 7, made of metal, rubber, or other elastic substance, such as leather, are formed (see Fig. 4) with sloping sides 8, adapted to fit the dovetail cross-section of slots, and a shoulder 9 upon each of the opposite sides to provide a bearing against the under face 10 of the shoe. Tenons ll and 12 project from the opposite ends of the calks. The former registers with the recess 4, and the other, 12, extends beneath and is engaged by the lugs 6, which are folded therebeneath, thus preventing the calks becoming unseated from jars or other causes. I prefer, however, to use additional or supplemental fastening means where elastic calks are used, and which means consists in inserting a wedge 13 into an incision 14 of each calk,which not only expands the material transversely to fill its slot, but also forces a portion thereof into apertures 15, provided in the side walls 5.

Instead of using lugs '6 integral with the shoe or to replace the same should they become broken therefrom I contemplate using U-shaped snap-clasps 16 (see Figs. 7 and 8) with inwardly-pointing toes 17, positioned so that when sprung around the calks the toes will engage with the apertures 15.

Referring now to Fig.6,the calks or weights are inserted in reverse directions from that shown in the other views-that is, the toepiece from the back and the heel-piece from the quickchanging of hard calks for elastic ones upon the paved streets of a city, thus not only doing away with the noises common to metal-calked shoes, but at the same time preventing those shocks or jars which frequently ruin a good animal. They permit the changing of difierent-shaped calks suitable to varying conditions of road. They permit the securing or removability of too or side weights to a horses foot at the proper moment and in the place Where they will be most beneficialfor instance, where it is desired to speed the horse or change his gait, as from a pace to a trot, or vice versa, by simply changing the weights from the fore feet to the hind feet, or the contrary. Furthermore, by the use of this invention toeweights may be used as with no other shoe which has come to my noticethat is, upon the shoe proper and not on the hoof-and by thus lowering the weight and putting it well forward the horse is caused to extend his stride or reach.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. Asanew article of manufacture, ahorseshoe provided in the toe and heels thereof with slots or channels having sloping sides, a recess extending into the horseshoe beyond the ends of said slots, and hooked lugs integral with the shoe, substantially as and for the purposes described.

2. Ina horseshoe, the combination with the shoe-body having dovetail slots provided in the toe and heels thereof, a recess extending into the shoe beyond the termination of each of said slots, and hooked lugs integral with the shoe-body; of calks or weights having at one end of each a tenon projecting to engage with its corresponding recess, and another tenon positioned upon the other end for engaging With the said hooked lugs, substantially as described.

3. In a horseshoe, the combination with a dovetail slot having apertures in the side walls thereof, a recessed longitudinal extension of said slot, lugs integral with the slotwalls, and an elastic calk registering with the said slot and recess; of a wedge-piece adapted to be inserted in an incision of the calk for forcing the same to engage with the said apertures of the slot-walls, substantially as and for the purposes described.

4. In a horseshoe, the combination with a dovetail slot having apertures in the side walls thereof, and having its rear end open, an elastic calk arranged in said slot, of a wedge arranged in the said calk for forcing the calk into the said apertures of the dovetail slot, and a securing means secured to the said slots walls and engaging the rear end of the said calk, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ANTHONY CORCORAN.

Vitnesses:

PIERRE BARNES, J OHN N. PERKINS. 

